Pre-emergent, soil-applied herbicide for broadleaf weed control in peanuts and soybeans. Prepn: J. C. Van Heertum et al., EP 343752; eidem, US 5163995 (1989, 1992 both to DowElanco). Field study in peanuts: W. A. Bailey et al., Weed Technol. 13, 450, 771 (1999); W. J. Grichar et al., Peanut Sci. 26, 23 (1999). Field trial in soybeans: D. R. Shaw et al., Weed Technol. 13, 791 (1999).